#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Collections.Generic;
using Newtonsoft.Utilities.Miscellaneous;

namespace Newtonsoft.Utilities.Collections
{
  public class MultiComparer<T> : IComparer<T> where T : IComparable<T>
  {
    private readonly List<IComparer<T>> _comparers;

    public MultiComparer(IEnumerable<IComparer<T>> comparers)
    {
      ValidationUtils.ArgumentNotNull(comparers, "comparers");

      _comparers = new List<IComparer<T>>(comparers);

      ValidationUtils.ArgumentNotNullOrEmpty<IComparer<T>>(_comparers, "comparers");
    }

    public int Compare(T x, T y)
    {
      for (int i = 0; i < _comparers.Count; i++)
      {
        int result = _comparers[i].Compare(x, y);

        if (result != 0)
          return result;
      }

      return 0;
    }
  }
}